Pub Date : 2023-07-05DOI: 10.17758/dirpub14.dir0723212
{"title":"Synthesis and Characterization of the Spinel Znfe2O4 Application to Photodegradation of Organic Pollutant Under Visible Light","authors":"","doi":"10.17758/dirpub14.dir0723212","DOIUrl":"https://doi.org/10.17758/dirpub14.dir0723212","url":null,"abstract":"","PeriodicalId":52265,"journal":{"name":"Journal of Computational Technologies","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78220456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-14DOI: 10.17758/heaig13.h0623101
{"title":"The Importance of New Technologies in The Education and Professional Development of Future Engineers in The Technical Profession","authors":"","doi":"10.17758/heaig13.h0623101","DOIUrl":"https://doi.org/10.17758/heaig13.h0623101","url":null,"abstract":"","PeriodicalId":52265,"journal":{"name":"Journal of Computational Technologies","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76468589","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-14DOI: 10.17758/heaig13.h0623204
Fikret Alic
: The intensity of convective electric heating of the fluid is mainly determined by its volumetric flow, the installed power of the heater and the geometric characteristics of the channel through which it flows. The temperature of the surface of the heating source, and its power is limited by the maximum allowed value. The constant convective surface of the electric heating source, with the above limitations, results in a wide range of electric convective heaters. The thermal efficiency of these heaters depends on a case-by-case basis, while the temperature of the fluid varies in some intervals in relation to the required temperature that needs to be achieved. During fast transient fluid heating processes, convective electric heaters are thermally inert, low efficiency, while in some cases their application is unjustified. Therefore, the thermally generated entropy of the described convective heaters and fluids increases, from case to case, while their energy efficiency is minimized.
{"title":"Flexible Thermal Convective Emitter - Unsteady Irreversibility Analysis","authors":"Fikret Alic","doi":"10.17758/heaig13.h0623204","DOIUrl":"https://doi.org/10.17758/heaig13.h0623204","url":null,"abstract":": The intensity of convective electric heating of the fluid is mainly determined by its volumetric flow, the installed power of the heater and the geometric characteristics of the channel through which it flows. The temperature of the surface of the heating source, and its power is limited by the maximum allowed value. The constant convective surface of the electric heating source, with the above limitations, results in a wide range of electric convective heaters. The thermal efficiency of these heaters depends on a case-by-case basis, while the temperature of the fluid varies in some intervals in relation to the required temperature that needs to be achieved. During fast transient fluid heating processes, convective electric heaters are thermally inert, low efficiency, while in some cases their application is unjustified. Therefore, the thermally generated entropy of the described convective heaters and fluids increases, from case to case, while their energy efficiency is minimized.","PeriodicalId":52265,"journal":{"name":"Journal of Computational Technologies","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74153101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-14DOI: 10.17758/heaig13.h0623106
Juan Daniel Sarmiento, Maribel Anaya Vejar, C. Sánchez, D. Tibaduiza
Plastic is a material widely used today because of its advantages; however, in some cases, its poor disposal can generate particles caused by the degradation of larger plastic products because of its interaction with the environment. This is the case, for instance, of microplastics found in rivers, where the friction of bottles and other plastic waste with its surrounding environment results in microplastic pollution. From this point of view, it is necessary the development of monitoring systems to detect these kinds of materials and understand their dynamics with the environment in which they are found. The use of this kind of system can allow the development of strategies for mitigating their possible impacts. In this sense, this work shows the preliminary development of a methodology for detecting microplastics in water for human consumption using the electrochemical technique of impedance spectroscopy. The methodology was evaluated in water samples, and 160 experiments were carried out by adding different contaminants. Results show the potential of the methodology in the detection of microplastics by using an electronic tongue that makes use of impedance spectroscopy and principal component analysis.
{"title":"Microplastic Detection in Water Using a Sensor Network, An Electronic Tongue and Spectroscopy Impedance","authors":"Juan Daniel Sarmiento, Maribel Anaya Vejar, C. Sánchez, D. Tibaduiza","doi":"10.17758/heaig13.h0623106","DOIUrl":"https://doi.org/10.17758/heaig13.h0623106","url":null,"abstract":"Plastic is a material widely used today because of its advantages; however, in some cases, its poor disposal can generate particles caused by the degradation of larger plastic products because of its interaction with the environment. This is the case, for instance, of microplastics found in rivers, where the friction of bottles and other plastic waste with its surrounding environment results in microplastic pollution. From this point of view, it is necessary the development of monitoring systems to detect these kinds of materials and understand their dynamics with the environment in which they are found. The use of this kind of system can allow the development of strategies for mitigating their possible impacts. In this sense, this work shows the preliminary development of a methodology for detecting microplastics in water for human consumption using the electrochemical technique of impedance spectroscopy. The methodology was evaluated in water samples, and 160 experiments were carried out by adding different contaminants. Results show the potential of the methodology in the detection of microplastics by using an electronic tongue that makes use of impedance spectroscopy and principal component analysis.","PeriodicalId":52265,"journal":{"name":"Journal of Computational Technologies","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83822816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-22DOI: 10.17758/eares13.eap0523218
{"title":"Soil Health and Quality in Sustainable Agriculture","authors":"","doi":"10.17758/eares13.eap0523218","DOIUrl":"https://doi.org/10.17758/eares13.eap0523218","url":null,"abstract":"","PeriodicalId":52265,"journal":{"name":"Journal of Computational Technologies","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86701089","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-22DOI: 10.17758/eares13.u0523205
K. Kakugawa, K. Nosaki, S. Umemoto, T. Noda, T. Tanaka
— Plasma-based ion implantation (PBII) is a surface modification technique that uses a negative high-voltage pulse in plasma to implant ions uniformly onto a sample. This technique is performed by narrowing the width of the ion sheath formed near the sample and aligning the shape of the sheath closely to the sample, particularly for complexly shaped samples. Our investigation focuses on the application potential of PBII in sterilizing microorganisms. In particular, we aimed to determine the most suitable gas species for sterilization using PBII on Escherichia coli, a type of microorganism that can contaminate food. Our findings demonstrate that nitrogen or oxygen gas could increase the sterilization effect with an increase in applied voltage. The provided conductive stainless-steel is used as the Petri dish for sample fixation. By contrast, sterilization becomes more effective when HHO gas, which is produced by water electrolysis and is non-hazardous compared with peroxide gas, is utilized compared with other gases, even at a low applied voltage of −2 kV. Therefore, the use of HHO gas in PBII could enable milder sterilization conditions than previously attainable when sterilizing foodstuffs.
{"title":"Effectiveness of Using HHO Gas for PBII Treatment in Sterilizing Escherichia Coli","authors":"K. Kakugawa, K. Nosaki, S. Umemoto, T. Noda, T. Tanaka","doi":"10.17758/eares13.u0523205","DOIUrl":"https://doi.org/10.17758/eares13.u0523205","url":null,"abstract":"— Plasma-based ion implantation (PBII) is a surface modification technique that uses a negative high-voltage pulse in plasma to implant ions uniformly onto a sample. This technique is performed by narrowing the width of the ion sheath formed near the sample and aligning the shape of the sheath closely to the sample, particularly for complexly shaped samples. Our investigation focuses on the application potential of PBII in sterilizing microorganisms. In particular, we aimed to determine the most suitable gas species for sterilization using PBII on Escherichia coli, a type of microorganism that can contaminate food. Our findings demonstrate that nitrogen or oxygen gas could increase the sterilization effect with an increase in applied voltage. The provided conductive stainless-steel is used as the Petri dish for sample fixation. By contrast, sterilization becomes more effective when HHO gas, which is produced by water electrolysis and is non-hazardous compared with peroxide gas, is utilized compared with other gases, even at a low applied voltage of −2 kV. Therefore, the use of HHO gas in PBII could enable milder sterilization conditions than previously attainable when sterilizing foodstuffs.","PeriodicalId":52265,"journal":{"name":"Journal of Computational Technologies","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88146932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-22DOI: 10.17758/eares13.eap0523408
Helen Fridayani, Lichun Chiang, Kuang-Ting Tai
Abstract — Most micro-enterprise managers/owners in Indonesia, and Yogyakarta City, in particular, did not view adopting Digital Marketing Technology (DMT) as crucial for business before the Covid-19 outbreak. Many consider it a managerial support or operational activities requirement rather than a tactical or strategic tool. Even though most studies focus on large enterprises, the results of several research may not apply to micro-enterprises. This demonstrates the carelessness of the peculiarities of micro-enterprises in their thinking without taking into account the micro-enterprise value inherent in this tool in terms of assisting its use as a strategy tool and digitization as a prerequisite for managerial activity. In light of this, the digitization of micro-enterprises is an uninvestigated issue. The characteristics that specifically encourage the value that micro businesses attach to these applications, resulting in constant uptake and usage, are, however, less thoroughly examined in the research marketing application in micro-enterprises in Indonesia. Therefore, it requires thoroughly investigating the variables that determine digital value. This study used unstructured interviews with 22 micro-enterprises that were carefully selected from databases and supported by a technology, organization, and environmental factors (TOE) framework. This study identifies several crucial success elements that foster the value of micro-enterprises digital marketing technology (DMT) use. This study will be significant for academics and practitioners because it raises knowledge of the DMT adoption framework, which is crucial for DMT adoption, and it helps cut down on the resources needed to find information on how to support DMT adoption by microenterprises.
{"title":"An Adoption of Digital Marketing to Analyze Technology (DMT) Motivation: A Case Study of Micro-Enterprises in Yogyakarta City, Indonesia","authors":"Helen Fridayani, Lichun Chiang, Kuang-Ting Tai","doi":"10.17758/eares13.eap0523408","DOIUrl":"https://doi.org/10.17758/eares13.eap0523408","url":null,"abstract":" Abstract — Most micro-enterprise managers/owners in Indonesia, and Yogyakarta City, in particular, did not view adopting Digital Marketing Technology (DMT) as crucial for business before the Covid-19 outbreak. Many consider it a managerial support or operational activities requirement rather than a tactical or strategic tool. Even though most studies focus on large enterprises, the results of several research may not apply to micro-enterprises. This demonstrates the carelessness of the peculiarities of micro-enterprises in their thinking without taking into account the micro-enterprise value inherent in this tool in terms of assisting its use as a strategy tool and digitization as a prerequisite for managerial activity. In light of this, the digitization of micro-enterprises is an uninvestigated issue. The characteristics that specifically encourage the value that micro businesses attach to these applications, resulting in constant uptake and usage, are, however, less thoroughly examined in the research marketing application in micro-enterprises in Indonesia. Therefore, it requires thoroughly investigating the variables that determine digital value. This study used unstructured interviews with 22 micro-enterprises that were carefully selected from databases and supported by a technology, organization, and environmental factors (TOE) framework. This study identifies several crucial success elements that foster the value of micro-enterprises digital marketing technology (DMT) use. This study will be significant for academics and practitioners because it raises knowledge of the DMT adoption framework, which is crucial for DMT adoption, and it helps cut down on the resources needed to find information on how to support DMT adoption by microenterprises.","PeriodicalId":52265,"journal":{"name":"Journal of Computational Technologies","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82934540","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-22DOI: 10.17758/eares13.uh0523405
{"title":"The Role of Libraries in Achieving the United Nations Goals of Sustainable Development 2030","authors":"","doi":"10.17758/eares13.uh0523405","DOIUrl":"https://doi.org/10.17758/eares13.uh0523405","url":null,"abstract":"","PeriodicalId":52265,"journal":{"name":"Journal of Computational Technologies","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77674534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-22DOI: 10.17758/eares13.uh0523412
Abstract — Western artists have long dominated human art history, and their aesthetic orientation has constantly influenced the general aesthetic and has become the key to defining mainstream art. They promoted beautiful, delicate, and elegant female figures in the creations, so people's aesthetics of female body images gradually developed toward idealization. For this reason, many feminist artists are committed to changing this situation. Propped , a painting by Jenny Saville, is one of the representatives of feminist artwork. Considered from a feminist perspective, this work critically focuses on the aesthetics of the female body image through its unique reproduction of the woman's body, thereby challenging the male gaze in society and reshaping the narrative of women in art history.
{"title":"Propped by Jenny Saville: Challenging the Aesthetics of the Female Body and Image","authors":"","doi":"10.17758/eares13.uh0523412","DOIUrl":"https://doi.org/10.17758/eares13.uh0523412","url":null,"abstract":" Abstract — Western artists have long dominated human art history, and their aesthetic orientation has constantly influenced the general aesthetic and has become the key to defining mainstream art. They promoted beautiful, delicate, and elegant female figures in the creations, so people's aesthetics of female body images gradually developed toward idealization. For this reason, many feminist artists are committed to changing this situation. Propped , a painting by Jenny Saville, is one of the representatives of feminist artwork. Considered from a feminist perspective, this work critically focuses on the aesthetics of the female body image through its unique reproduction of the woman's body, thereby challenging the male gaze in society and reshaping the narrative of women in art history.","PeriodicalId":52265,"journal":{"name":"Journal of Computational Technologies","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78157333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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